At a theme park, there were
27 as many adults as children at first. After 25 adults left, there were 120 more children than adults remaining at a theme park. How many children were at the theme park?
| |
Adults |
Children |
| Before |
2 u |
7 u |
| Change |
- 25 |
|
| After |
2 u - 25 |
7 u |
In the end, the number of children was 120 more than the number of adults. If another 120 adults entered the theme park, the number of children and adults would be the same.
7 u = 2 u - 25 + 120
7 u - 2 u = 120 - 25
5 u = 95
1 u = 95 ÷ 5 = 19
Number of children at first
= 7 u
= 7 x 19
= 133
Answer: 133
